Tv won't go past Toshiba welcome screen - Toshiba 55L7200U 55-Inch 1080p 3D LED HDTV

SOURCE: Our Toshiba RS-TX60 Tivo-DVD is stuck on 'Welcome'

Could Be a Bad Drive.
These units sometimes take a long time to boot.
Wait about 5-10min.
Replace Drive

SOURCE: my toshiba tablet won't let me go past the welcome screen

If this is under warranty take it back. If it isn't power the unit on with just the battery powering the unit. When you see the Windows splash screen drop the battery out after the screen goes black put the battery back in and press the power button. This should bring up the on screen menu telling you it failed to start or shut down correctly. Select, Boot in Safe Mode and see if the system will power on. If that fails you need to do a system restore. To access system restore options power the unit on and press and hold the F10 key, this will bring up the restore Windows options. From that menu select to restore your operating system. If that fails you will have to do a complete restore to factory default settings. If that fails you will have to replace the hard drive.